Add Yahoo as a preferred source to see more of our stories on Google. Your shoulders may look impressive from the front, but what about those rear delts? The rear delts are often overlooked, but ...

It's easy to focus on biceps and triceps exercises during my upper-body workout. Sometimes I even throw in some back moves. But my go-to arm routine was missing a major muscle group: rear deltoids.

Ever notice the guys whose shirts seem to hang off their shoulders like a human coat rack? Those perfectly rounded, grapefruit-sized delts don’t just happen by chance or good genetics. Sure, DNA plays ...